CN104165483A - Expansion valve throttling structure and heat pump system containing same - Google Patents
Expansion valve throttling structure and heat pump system containing same Download PDFInfo
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- CN104165483A CN104165483A CN201410353977.1A CN201410353977A CN104165483A CN 104165483 A CN104165483 A CN 104165483A CN 201410353977 A CN201410353977 A CN 201410353977A CN 104165483 A CN104165483 A CN 104165483A
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- expansion
- valve
- expansion valve
- pipeline
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Abstract
The invention discloses an expansion valve throttling structure and a heat pump system containing the same. The expansion valve throttling structure comprises a first main pipe (10) and a second main pipe (20), a first expansion pipeline (30) and a second expansion pipeline (40), the first expansion pipeline (30) comprises a first heating power expansion valve (31) and a first control valve (32), the first heating power expansion valve (31) and the first control valve (32) are connected in series, the second expansion pipeline (40) comprises a second heating power expansion valve (41) and a second control valve (42), and the second heating power expansion valve (41) and the second control valve (42) are connected in series. The first expansion pipeline (30) and the second expansion pipeline (40) are arranged in parallel; in a refrigeration state, the first expansion pipeline (30) is connected, and the second expansion pipeline (40) is disconnected; in a heating state, the first expansion pipeline (30) is disconnected, and the second expansion pipeline (40) is connected. The expansion valve throttling structure is simple, convenient to machine, stable, reliable and capable of adjusting the throttling function flexibly.
Description
Technical field
The present invention relates to heat pump field, in particular to a kind of expansion valve throttle structure and the heat pump that comprises this expansion valve throttle structure.
Background technology
Compressor, condenser, expansion valve, the large parts of evaporimeter four have formed heat pump jointly.Expansion valve is a vitals in heat pump, is generally installed between condenser and evaporimeter.Expansion valve can make to liquefy to the liquid refrigerant of HTHP by compressor boost through the gas of evaporator evaporation, and by its restriction throttling, become the vaporific liquid refrigerant of low-temp low-pressure, then cold-producing medium absorbs heat and reaches refrigeration in evaporimeter.The degree of superheat of expansion valve by evaporimeter end changes carrys out by-pass valve control flow, prevents because the too small evaporator area of flow is under-utilized and the not enough cold-producing medium gasification of the too much evaporator area of flow not exclusively sucks compressor and produces liquid state impact.
Refrigerant flow direction when pump type heat naval ship water refrigerator unit freezes, heats is contrary, needs different restricting elements carry out throttling, to guarantee the normal operation of system, realizes refrigeration and heat-production functions.Conventional throttle style has capillary, electric expansion valve etc., but all has shortcoming in various degree, and capillary-compensated exists uncontrollable shortcoming, and electric expansion valve exists reliability not strong, and need electric drive, has the shortcomings such as electromagnetic interference.
Summary of the invention
The heat pump that a kind of expansion valve throttle structure is provided in the embodiment of the present invention and comprises this expansion valve throttle structure, simple in structure, easy to process, reliable and stable, can flexible modulation throttling function.
For solving the problems of the technologies described above, the embodiment of the present invention provides a kind of expansion valve throttle structure, comprising: the first house steward; The second house steward; The first expansion pipeline, is connected between the first house steward and the second house steward, comprises the first heating power expansion valve and first control valve of serial connection; The second expansion pipeline, is connected between the first house steward and the second house steward, comprises the second heating power expansion valve and second control valve of serial connection; The first expansion pipeline and the second expansion pipeline are arranged in parallel, and when refrigerating state, the first expansion pipeline conducting, the second not conducting of expansion pipeline; When heating state, the first not conducting of expansion pipeline, the second expansion pipeline conducting.
As preferably, the first heating power expansion valve is positioned at the downstream of the first control valve, and the second heating power expansion valve is positioned at the downstream of the second control valve.
As preferably, the first control valve is the first check valve, and the first heating power expansion valve is positioned at the port of export of the first check valve; The second control valve is the second check valve, and the second heating power expansion valve is positioned at the port of export of the second check valve, and the first check valve and the second check valve oppositely arrange.
As preferably, on the first heating power expansion valve, be provided with the first balance pipe, on the second heating power expansion valve, be provided with the second balance pipe.
As preferably, the first balance pipe and the second balance pipe are connected.
According to a further aspect in the invention, provide a kind of heat pump, comprised expansion valve throttle structure, this expansion valve throttle structure is above-mentioned expansion valve throttle structure.
Apply technical scheme of the present invention, expansion valve throttle structure comprises: the first house steward; The second house steward; The first expansion pipeline, is connected between the first house steward and the second house steward, comprises the first heating power expansion valve and first control valve of serial connection; The second expansion pipeline, is connected between the first house steward and the second house steward, comprises the second heating power expansion valve and second control valve of serial connection; The first expansion pipeline and the second expansion pipeline are arranged in parallel, and when refrigerating state, the first expansion pipeline conducting, the second not conducting of expansion pipeline; When heating state, the first not conducting of expansion pipeline, the second expansion pipeline conducting.This expansion valve throttle structure includes the first heating power expansion valve and the second heating power expansion valve, these two heating power expansion valves are separately positioned on two expansion pipelines, and control by different control valves, thereby work respectively when freezing and heating, this kind of expansion valve throttle structure adopts the mode of heating power expansion valve in parallel, simple in structure, easy to process, during work without by electric current, expansion valve being controlled, therefore can not be subject to electromagnetic interference, working stability is reliable, can flexible modulation throttling function.
Accompanying drawing explanation
Fig. 1 is the perspective view of the expansion valve throttle structure of the embodiment of the present invention;
Fig. 2 is the front view of the expansion valve throttle structure of the embodiment of the present invention;
Fig. 3 is according to the top view of the expansion valve throttle structure of the embodiment of Fig. 2.
Description of reference numerals: 10, the first house steward; 20, the second house steward; 30, the first expansion pipeline; 40, the second expansion pipeline; 31, the first heating power expansion valve; 32, the first control valve; 33, the first balance pipe; 41, the second heating power expansion valve; 42, the second control valve; 43, the second balance pipe.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
In figure, the direction of arrow represents the flow direction of refrigerant.
As shown in Figure 1 to Figure 3, according to embodiments of the invention, expansion valve throttle structure comprises the first house steward 10, the second house steward 20, the first expansion pipeline 30 and the second expansion pipeline 40.The first house steward 10 with the second house steward 20 all for being connected with other structures of heat pump, so that the expansion valve throttle structure of the embodiment of the present invention is applied in heat pump.
The first expansion pipeline 30 is connected between the first house steward 10 and the second house steward 20, comprises the first heating power expansion valve 31 and first control valve 32 of serial connection.The second expansion pipeline 40 is connected between the first house steward 10 and the second house steward 20, comprises the second heating power expansion valve 41 and second control valve 42 of serial connection.Between the first house steward 10, the first expansion pipeline 30 and the second expansion pipeline 40, by a three-way pipe, connect, between the second house steward 20, the first expansion pipeline 30 and the second expansion pipeline 40, also by a three-way pipe, connect.
The first expansion pipeline 30 and the second expansion pipeline 40 are arranged in parallel, the first control valve 32 is for controlling the break-make of the first expansion pipeline 30, the second control valve 42 is for controlling the break-make of the second expansion pipeline 40, make expansion valve throttle structure when refrigerating state, the first expansion pipeline 30 conductings, the second expansion pipeline 40 not conductings; When heating state, the first expansion pipeline 30 not conductings, the second expansion pipeline 40 conductings.
This expansion valve throttle structure includes the first heating power expansion valve 31 and the second heating power expansion valve 41 being arranged in parallel, these two heating power expansion valves are separately positioned on two expansion pipelines, and control by different control valves, thereby work respectively when freezing and heating, this kind of expansion valve throttle structure adopts the mode of heating power expansion valve in parallel, simple in structure, easy to process, during work without by electric current, expansion valve being controlled, therefore can not be subject to electromagnetic interference, working stability is reliable, can flexible modulation throttling function.
The first heating power expansion valve 31 is positioned at the downstream of the first control valve 32, when the first expansion pipeline 30 is communicated with, and refrigerant first control valve 32 of first flowing through, first heating power expansion valve 31 of then flowing through; The second heating power expansion valve 41 is positioned at the downstream of the second control valve 42, when the second expansion pipeline 40 is communicated with, and refrigerant second control valve 42 of first flowing through, second heating power expansion valve 41 of then flowing through.The first control valve 32 and the second control valve 42 all can be set to the valve of energy control piper break-make, are preferably magnetic valve.The first control valve 32 and the second control valve 42 can be communicated with the controller of heat pump, and when controller is controlled heat pump refrigeration, the second control valve 42 is closed, the second expansion pipeline 40 not conductings; When controller control heat pump heats, the first control valve 32 is closed, the first expansion pipeline 30 not conductings.
Preferably, in the present embodiment, the first control valve 32 is the first check valve, and the first heating power expansion valve 31 is positioned at the port of export of the first check valve; The second control valve 42 is the second check valve, and the second heating power expansion valve 41 is positioned at the port of export of the second check valve, and the first check valve and the second check valve oppositely arrange.The first check valve and the second check valve are arranged in parallel, and reverse-conducting, by the one-way conduction effect of check valve, can guarantee expansion valve throttle structure when work, and two one, choke valves play conducting and do the used time another has been cut-off effect.The parallel connection expansion pipeline that these two check valves form, can realize the first expansion pipeline 30 conductings, the second expansion pipeline 40 not conductings easily; The second expansion pipeline 40 conductings, the control function of the first expansion pipeline 30 not conductings, and only by the intrinsic function of check valve itself, just can realize, therefore without control circuit etc. is set, make expansion valve throttle structure simpler, cost is lower, works more reliable.
On the first heating power expansion valve 31, be provided with on the first balance pipe 33, the second heating power expansion valves 41 and be provided with the second balance pipe 43.Preferably, the first balance pipe 33 and the second balance pipe 43 are connected.
Below the course of work of the expansion valve throttle structure of the embodiment of the present invention is illustrated.
When refrigeration, refrigerant enters from the first house steward 10, then by three-way pipe, divide two-way, one tunnel enters the first expansion pipeline 30, the first check valve conducting, enters the first heating power expansion valve 31, the first heating power expansion valves 31 through tube connector and works, the pressure difference value that the temperature-sensitive bag carrying according to the first balance pipe 33 and the first heating power expansion valve 31 detects carries out throttling to refrigerant, and after throttling, refrigerant enters to the second house steward 20 to next circulation by tube connector through three-way pipe; Another road enters the second expansion pipeline 40, after tube connector and the second heating power expansion valve 41, flows to the second check valve, due to the second check valve cut-off, and therefore the second expansion pipeline 40 not conductings, this road is inoperative.
When heating, refrigerant recycled back, from the second house steward 20, enter, then by three-way pipe, divide two-way, a road enters the second expansion pipeline 40, the second check valve conductings, through tube connector, enter the second heating power expansion valve 41, the second heating power expansion valve 41 works, and the pressure difference value that the temperature-sensitive bag carrying according to the second balance pipe 43 and the second heating power expansion valve 41 detects carries out throttling to refrigerant, and after throttling, refrigerant enters to the first house steward 10 to next circulation by tube connector by three-way pipe; Another road enters the first expansion pipeline 30, after tube connector and the first heating power expansion valve 31, flows to the first check valve, due to the first check valve cut-off, and therefore the first expansion pipeline 30 not conductings, this road is inoperative.
During practical application, may be also when refrigeration, refrigerant be to enter from the second house steward 20, and while heating, refrigerant is to enter from the first house steward 10.
According to a further aspect in the invention, heat pump comprises expansion valve throttle structure, and this expansion valve throttle structure is above-mentioned expansion valve throttle structure.
Certainly, be more than the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art, not departing under the prerequisite of basic principle of the present invention, can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (6)
1. an expansion valve throttle structure, is characterized in that, comprising:
The first house steward (10);
The second house steward (20);
The first expansion pipeline (30), is connected between described the first house steward (10) and described the second house steward (20), comprises the first heating power expansion valve (31) and first control valve (32) of serial connection;
The second expansion pipeline (40), is connected between described the first house steward (10) and described the second house steward (20), comprises the second heating power expansion valve (41) and second control valve (42) of serial connection;
Described the first expansion pipeline (30) and described the second expansion pipeline (40) are arranged in parallel, and when refrigerating state, described the first expansion pipeline (30) conducting, described the second not conducting of expansion pipeline (40); When heating state, described the first not conducting of expansion pipeline (30), described the second expansion pipeline (40) conducting.
2. expansion valve throttle structure according to claim 1, it is characterized in that, described the first heating power expansion valve (31) is positioned at the downstream of described the first control valve (32), and described the second heating power expansion valve (41) is positioned at the downstream of described the second control valve (42).
3. expansion valve throttle structure according to claim 2, is characterized in that, described the first control valve (32) is the first check valve, and described the first heating power expansion valve (31) is positioned at the port of export of described the first check valve; Described the second control valve (42) is the second check valve, and described the second heating power expansion valve (41) is positioned at the port of export of described the second check valve, and described the first check valve and described the second check valve oppositely arrange.
4. expansion valve throttle structure according to claim 1, is characterized in that, is provided with the first balance pipe (33) on described the first heating power expansion valve (31), is provided with the second balance pipe (43) on described the second heating power expansion valve (41).
5. expansion valve throttle structure according to claim 4, is characterized in that, described the first balance pipe (33) and described the second balance pipe (43) are connected.
6. a heat pump, comprises expansion valve throttle structure, it is characterized in that, described expansion valve throttle structure is the expansion valve throttle structure described in any one in claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353977.1A CN104165483A (en) | 2014-07-23 | 2014-07-23 | Expansion valve throttling structure and heat pump system containing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353977.1A CN104165483A (en) | 2014-07-23 | 2014-07-23 | Expansion valve throttling structure and heat pump system containing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104165483A true CN104165483A (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410353977.1A Pending CN104165483A (en) | 2014-07-23 | 2014-07-23 | Expansion valve throttling structure and heat pump system containing same |
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| Country | Link |
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| CN (1) | CN104165483A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
Citations (7)
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|---|---|---|---|---|
| CN1158971A (en) * | 1995-12-11 | 1997-09-10 | 松下电器产业株式会社 | Refrigerating circulation |
| KR20040023314A (en) * | 2002-09-11 | 2004-03-18 | 엘지전자 주식회사 | Refrigerant contral apparatus for air conditioner |
| JP2004156823A (en) * | 2002-11-06 | 2004-06-03 | Matsushita Refrig Co Ltd | Cooling system |
| CN101893356A (en) * | 2010-06-30 | 2010-11-24 | 广东美的电器股份有限公司 | Air-conditioner and control method thereof |
| CN201954856U (en) * | 2010-12-15 | 2011-08-31 | 重庆美的通用制冷设备有限公司 | Cold medium flow direction converter and flow control device |
| CN103162476A (en) * | 2011-12-15 | 2013-06-19 | 同方人工环境有限公司 | Structure with double thermostatic expansion valves |
| CN204128249U (en) * | 2014-07-23 | 2015-01-28 | 珠海格力电器科技有限公司 | Expansion valve throttle structure and comprise the heat pump of this expansion valve throttle structure |
-
2014
- 2014-07-23 CN CN201410353977.1A patent/CN104165483A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1158971A (en) * | 1995-12-11 | 1997-09-10 | 松下电器产业株式会社 | Refrigerating circulation |
| KR20040023314A (en) * | 2002-09-11 | 2004-03-18 | 엘지전자 주식회사 | Refrigerant contral apparatus for air conditioner |
| JP2004156823A (en) * | 2002-11-06 | 2004-06-03 | Matsushita Refrig Co Ltd | Cooling system |
| CN101893356A (en) * | 2010-06-30 | 2010-11-24 | 广东美的电器股份有限公司 | Air-conditioner and control method thereof |
| CN201954856U (en) * | 2010-12-15 | 2011-08-31 | 重庆美的通用制冷设备有限公司 | Cold medium flow direction converter and flow control device |
| CN103162476A (en) * | 2011-12-15 | 2013-06-19 | 同方人工环境有限公司 | Structure with double thermostatic expansion valves |
| CN204128249U (en) * | 2014-07-23 | 2015-01-28 | 珠海格力电器科技有限公司 | Expansion valve throttle structure and comprise the heat pump of this expansion valve throttle structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
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Application publication date: 20141126 |
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